Stretcher arrangement for applying a stretching movement to a person

A stretcher arrangement (2) comprising a first sheet (4) and a second sheet (6) to be arranged on a bed (8) having a first end (10) and a second end (12), and a length L along a longitudinal axis A. The first sheet (4) comprises a first surface (14), being a part of the first sheet that faces upward when the sheet is arranged on the bed (8). The second sheet (6) comprises a second surface (16), being a part of the second sheet (6) that faces upward when the sheet is arranged on the bed (8). The first surface (14) and the second surface (16) cover different parts of the bed surface, and border each other along a border line B that at least partly is essentially perpendicular to said axis A. The stretcher arrangement (2) further comprises:-a sheet movement unit (18) structured to apply movement to at least one of said first and second sheets (4, 6) essentially along the longitudinal axis A of said bed;-a control unit (20) configured to control said sheet movement unit (18), according to a set of sheet movement rules, such that a relative movement between said first surface (14) and said second surface (16) is provided, moving these surfaces apart from each other, resulting in that a stretching movement is applied to a person lying on the sheets.